Home / 10,689.78-16,034.70-6,301.20

Finding the Fourth Proportional to 10,689.78, 16,034.70 and 6,301.20

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Solution

The fourth proportional to 10,689.78, 16,034.70 and 6,301.20 is: 9,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.78 : 16,034.70 = 6,301.20 : x
  2. Step 2: Convert to fraction form
    10,689.78/16,034.70 = 6,301.20/x
  3. Step 3: Cross multiply
    10,689.78x = 16,034.70 × 6,301.20
  4. Step 4: Simplify right side
    10,689.78x = 101,037,851.64
  5. Step 5: Solve for x
    x = 101,037,851.64/10,689.78
  6. Step 6: Final answer
    x = 9,451.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.